baber/WOPTO huggingface dataset:
Patent DE-2211314-A1 (DE)
Title: Wear resistant white iron - contg trigonal or orthorhombic carbides in austenitic matrix
Inventor: MOORE WILLIAM HENRY
IPC: C22C37/10
Filed: 1972-03-09
Abstract: The white iron has the compsn. 3-4% total carbon, 0-2.5% Si, 7-15% Mn, 8-15% Cr, bal. Fe plus possibly up to 5% other alloying consistuents. It is used in grinding and crushing processes e.g., as mill liners, grinding balls, rolls etc. Toughness and wear resistance are achieved without use of costly alloying elements such as Ni or Mo.
Patent DE-2215523-A1 (DE)
Title: Plastic extrusion calibration - with steel/graphite bush in aluminium/plastic housing with spiral cooling channel
Inventor: HEITZER ROBERT
IPC: B29C48/90
Filed: 1972-03-30
Abstract: Designed for the calibration and cooling of cylindrical bodies of extruded thermoplastics, the bush is of steel or graphite in a housing of cast aluminium or plastic reinforced by glass fibres, to carry the spiral cooling channel round the bush, with narrow webs in the housing between the coolant channels. The purpose is to provide calibration without corrosive build-up and to allow easy access for maintenance.
Patent DE-2218950-A1 (DE)
Title: Wood chip panels mfr - in various formats using shaped backing plates
Inventor: LOBENHOFFER HANS
IPC: B27N3/20
Filed: 1972-04-19
Abstract: The backing for the continuously strewn felt of glued wood chips is formed by individual backing plates of the required shape and size with the blank centered on the plate and fed centrally into a multi-storey press. Pref. the backing plates can be overlapped or butt joined to each other and can be continuously exchanged to vary the format.
Patent DE-2228576-A1 (DE)
Title: Atomizer for viscous liquids - using counter-rotating brushes
IPC: B05B3/02
Filed: 1972-06-12
Abstract: The driven shafts on which the brushes are mounted are parallel within each pair and the spacing between them is such that the ends of the bristles of the two brushes of the pair, which may or may not be of the same dia., are slightly interleaved. A feed pipe or duct for the viscous liquid to be atomised leads to the overlap zone of the bristles. Two similar systems may be palced on opposite side walls of a common carrier gas duct the feeds then being sloped into the brushes from outside that duct.
Patent DE-2260088-A1 (DE)
Title: Measuring dissolved gas content using auxiliary gas - flowing in closed cycle analyser and having no auxiliary gas loss to atmosphere
Inventor: FUHRMANN HANS DR ING DR
IPC: G01N33/18
Filed: 1972-12-08
Abstract: Continuous phase exchange between gases dissolved in a liq. and an auxiliary gas, esp. for determining the dissolved gas content, is carried out as follows- the auxiliary gas is circulated in a closed cycle, in which the entry and exit of atmospheric air is prevented. Pref. the cycling of the gas is produced by an injector effect at the introduction of the liq.
Patent DE-2264189-A1 (DE)
Title: 3'-(3-oxo-17-beta-hydroxy-6,7-methylene-androst-(or - (19-nor-androst)4-ene-17 alpha-yl)-propionic acids - as aldosterone
Inventor: ARTH GLEN EDWARD
IPC: C07J1/00
Filed: 1972-12-29
Abstract: Cpds. (I): (where R is H or Me, X is H or F, Y is H2, H, (B)OH or keto, Z is H or a salt-forming cation and the 1,2-dotted line is an opt. double bond) are prepd. by hydrolysis of the corresponding lactone. Thus (I R = Me, X = H, Y = H2) is prepd. from 6 beta, 7 beta-methylene-20-spirox-4-ene-3,21-dione and Alc.NaOH.
Patent DE-2305681-A1 (DE)
Title: Graft polymers on ethylene vinyl ester copolymers - with phase inversion from water-in-oil to oil-in-water during polymn
Inventor: ALBERTS HEINRICH DR
IPC: C08F263/02
Filed: 1973-02-06
Abstract: According to the parent patent graft polymers are prepd by polymsg. a mixt. of (meth)acrylonitrile, monovinylaromatics, is not 1 2-18C monoolefin and possibly other vinyl or allyl cpds. in presence of an ethylene-vinyl ester copolymer. According to the present improvement, graft polymsn is in a heterogenous aq. org. phase; at the start of the polymsn water forms the discontinuous phase; during polymsn. water is added, possibly with emulsifiers, and at least by the end of the polymsn. water forms the continuous phase. The prod. is a bead polymer which is easily processed and dried. By using combinations of peroxides or radical-formers, graft prods with a cross-linked rubber phase can be obtd. Thermoplasts with high mechanical strength can be produced and moulded articles have good surface gloss.
Patent DE-2333864-A1 (DE)
Title: Pipe insulation mounting system - has lengthwise sections with flanges to pipe and curved overlapping outer portions
Inventor: LILJA LARS HARRY
IPC: F16L59/10
Filed: 1973-07-03
Abstract: The insulation is contained in a cylindrical sleeve concentric with the pipe and with flanges extending radially inwards to join or bear against the latter. A number of individual components are used, each with an outer portion forming part of the sleeve and of straight or curved section, and a flange joined to the pipe or bearing against it. A lengthwise edge of the outer portion overlaps or is detachably secured to the next one. The flange can be integral with the pipe or detachably secured to it, in the latter case fitting over a lengthwise rib integral with the pipe.
Patent DE-2354441-A1 (DE)
Title: Freely oscillating variable LC oscillator - has a fixed inductance within tolerance limits and a variable capacitor with nonlinear plates
Inventor: SCHMIEDEL WERNER DIPL-ING
IPC: H03J3/00
Filed: 1973-10-31
Abstract: The capacitor tuning range is not fully utilised, and frequency calibration is done at the lower frequency by adjustment of the capacitor initial setting, and at the higher frequency by a transformer. The capacitor plate shape ensures linear frequency variation with the capacitor angle. The capacitor has adjustment segments for accurate frequency characteristic adjustment, and the inductance is an air-core coil. A typical design has capacity changes from 0-200 pF for angular movements from 0 deg. to about 200 deg.C.
Patent DE-2365862-A1 (DE)
Title: Prefabricated plate of lime and sand - is moulded in layers with blanks by compacting in any order
IPC: B28B1/16
Filed: 1973-08-11
Abstract: The prefabricated building components, pref. wall elements, are e.g. for high rise buildings. The wall elements are made from layers of lime and sand mixture and of building stone blanks made from this material. Reinforcing bars can also be inserted where required. The materials are compacted in the course of prefabrication. The building component blanks are incorporated by alternating placing of a layer of raw material mixture into a mould and subsequent compacting. The material placing can be alternated with the compacting cycle of the raw material mixtures. Intermediate layers or covering layers of artificial stone blanks can be used on moulding.
Patent DE-2400415-A1 (DE)
Title: Opt. substd. 3(5)-aminopyrazol prepn. - from halo-acrylonitriles and hydrazines, pref. chloroacrylonitrile and hydrazine, in alkaline medium
Inventor: EGE GUENTHER PROF DR
IPC: C07D231/38
Filed: 1974-01-05
Abstract: cpds. (I) having general formula: (where R is H or opt. substd. alkyl, cycloalkyl, aralkyl or Ph and R1 is H, alkyl, cycloalkyl, aralkyl or opt. substd. Ph) are prepd. by reacting cpds. R1-CH=CX-CN, (II) (where X is Cl or Br) with hydrazines R-NH-NH2 (III), in an alkaline medium. (I) are useful diazo components, e.g. for prepn. of basic dyes. Pure (I) are obtd. in high yields by simple process. Specif. claimed is the prepn. of unsubstd. 3(5)-aminopyrazol from 2-chloroacrylonitrile and hydrazine. (II) is esp. added to (III) which is in alkaline soln. or suspension.
Patent DE-2401705-A1 (DE)
Title: Conducting fluorine polymer tubing - with inner lining of carbon filaments
Inventor: BLOESS PETER DIPL PHYS DR RER
IPC: F16L11/127
Filed: 1974-01-15
Abstract: A thermoplastic fluorine polymer tube, with electrically conducting graphite inner lining, is preferably made of perfluoralkoxy and has twisted or untwisted graphite filaments distributed over the inner circumference and at least half embedded in the tube wall. The conducting arrangement allows the tube to be stretched.
Patent DE-2405904-A1 (DE)
Title: Cine camera for X-ray equipment - has fail-safe claw setting between frames to enable cassette to be removed without damage
Inventor: LUTZ HERBERT DIPL ING
IPC: H05G1/60
Filed: 1974-02-07
Abstract: The cine film cassette is filled with X-ray film and is transported by two sets of claws. One set indexes the film to the next frame and one set holds the film steady for exposure. In order to prevent the film from tearing when the cassette is removed from the camera a special film drive is provided. After each exposure the film transport mechanism is activated for a set interval to withdraw the holding claw, and stops before the indexing claw engages the film. If the film drive control is still closed then the next exposure is indexed, otherwise the film stops in this intermediate setting, and allows the cassette to be removed without film damage.
Patent DE-2426214-A1 (DE)
Title: System alignment for checking objective - uses two diffraction gratings on both sides of system in conjugated planes
Inventor: HOCK FROMUND DIPL PHYS
IPC: G01M11/00
Filed: 1974-05-29
Abstract: The diffraction gratings are arranged on both sides of the optical system and in the conjugated planes according to the scale of image formation. The diffraction gratings possess a predetermined ratio of grating constants to each other. The ratio is in accordance with the nominal image characteristics of the optical system. One of the gratings is divided into two sections which either intersect in the division phase or their grating constants differ by the same plus and minus amounts from the nominal grating constants. The object raster (3) is uniformly illuminated by the light source (1) via the condenser (2).
Patent DE-2426308-A1 (DE)
Title: Non-absorbent heat-insulating facing brick - with bottom bar and top groove, and open side air chambers
Inventor: STRANZINGER HERMANN
IPC: E04B2/02
Filed: 1974-05-29
Abstract: Massonry erection is simplified and plastering eliminated, with building blocks of non-absorbent, heat-insulating material. For dry laying and smooth finish these have interlocking bars on the bottom and grooves on the top, the air chambers, open top and bottom, being in the two flat outer long sides and between them. There may also be end recesses and projections, and partitions dividing the chambers. Corner stones may be bent at right angles. On assembly chambers may be filled with a hard-setting or dry mass.
Patent DE-2437501-A1 (DE)
Title: Security system for locking a goods vehicle - uses a magnetic lock operated by a code card at fixed station
IPC: G07C9/00
Filed: 1974-08-03
Abstract: The transport container has a magnetic lock (2) which can be opened or locked by a number of control instruments (3) at fixed stations. The lock is set at one of these stations and only by a given code card for the lock. A bracket associated with the lock passes through the staples on the vehicle doors, the lock itself being linked by a cable to the control station so that it can be actuated. The control and latching sections of the lock are connected through a contact plate (8) to a fixed control device via cable, this plate itself being provided with a cover plate (11) making it water-and dust tight.
Patent DE-2439165-A1 (DE)
Title: Telephone PBX with direct call facility - wherein connection is made by operation of a direct call key through a direct path
Inventor: BYL FREDDY DIPL ING
IPC: H04M3/44
Filed: 1974-08-14
Abstract: Operation of a key in the telephone PBX makes operative switching means which prevents the direct call program request, and thus the direct call switch operation, and prepares the marking of the direct call extension to be connected to the tested and engaged line. The direct line coupled is applied to the calling line to connect with the subscriber. The direct call key also brings in a number of connections to other lines for marker signals and release of stored information. The interconnection circuits include a number of rectifiers with the relay contacts and have comparison circuits for seach lines and mixer circuits.
Patent DE-2440323-A1 (DE)
Title: Tape brake esp. for cassette recorders - is self-compensating for wear and needs no large external force
Inventor: VAVRINA JOSEF
IPC: G11B15/22
Filed: 1974-08-22
Abstract: The brake has brake shoes which act on the tape spool platforms. The shoes contact a small portion of the periphery of the spool platforms (1, 2). The shoes are pref. in the form of a single wedge member (4) covered with friction material and held by a spring between the spool platforms. The wedge member is pref. mounted is pref. mounted on the end of a two-arm lever (6) which is anchored by a spring at its other end and is actuated against this spring force by a magnet (9). The plunger (8) is attracted into the electromagnets (9) when they are energized thus moving the brake wedge (4) from its position on the platforms (1, 2).
Patent DE-2442274-A1 (DE)
Title: Convertor for information carrying signal - converts signal components in certain frequency range into LF modulated signal
Inventor: SHEN MICHAEL T
IPC: H03D7/02
Filed: 1974-09-04
Abstract: The conversion improves the signal-to-noise ration when the signal is re-transmitted to an audio magnetic tape. It comprises: a converter oscillator delivering a stable signal whose frequency is much higher than that of the signal carrier; and modulator responding to the oscillator signal and the information carrying signal, and delivering the oscillator signal frequency modulated with the information signal. A parametric frequency divider receives the f.m. signal and divides it by a factor greater than the ratio between the carrier frequency and a centre frequency of the information signal. It delivers an i.f. frequency modulated signal which can be recorded on tape.
Patent DE-2450722-A1 (DE)
Title: Multi-manual keyboard instrument - has six keys per octave, outer manual keys colour coded
Inventor: GODJEVATZ VELIZAR
IPC: G10C3/12
Filed: 1974-10-25
Abstract: A keyboard instrument particularly for beginners has three manuals, arranged in a stepped manner, the rear manual being highest and the front manual the lowest, each having six notes to the octave. The keys of the middle manual are staggered with respect to the other two, and its keys are coloured white, while the keys of the other manuals are in sets with the first key of the octave black, the next two grey the next white and the next two grey. The front and rear manuals can be coupled. A six line notation system is employed.
Patent DE-2451507-A1 (DE)
Title: Textile web steaming appts - compact assembly adjustable to web width and erectable at site from unitary components
Inventor: PROBST WILLI
IPC: D06B23/14
Filed: 1974-10-30
Abstract: Textile web steaming appts. is composed of a polygonal sleeve and a pair of end plates carried by respective pairs of posts, whereby each end plate is arranged symmetrically w.r.t. the vertical and horizontal axes and is composed of right angled segmental plates provided with openings for reception of roller support plates and flanges to which is attached the sleeve. Axial extension of sleeve is selected in accordance with the width of the treated web and the circumferential parameter of the sleeve is selected in accordance with the web feeding means and the length of the treated web.
Patent DE-2455780-A1 (DE)
Title: Difficulty combustible cables - with PVC compsn. sheath and polyethylene insulated core conductors
Inventor: HARBORT HANS DIPL ING
IPC: H01B7/295
Filed: 1974-11-26
Abstract: In a difficulty combustible cable consisting of plastic insulated core conductors and a plastic sheath, of improved electrical properties and/or smaller dimensions, the core conductor insulation consists of a material of low dielectric constant such as polyethylene, foamed polyethylene or polypropylene, while the cable sheath consists of a mixture contg. PVC which has an oxygen index rising from 32 with decreasing weight ratio of sheath material to core conductor insulating material, and pref. when this weight ratio is =3.0:1 the oxygen index of the sheathe material is >=32, while if the ratio is =1.5:1, the oxygen index is >=35. The cable while retaining its non-flammable properties has much improved electrical properties making is partic. suitable for high duty telephone cables.
Patent DE-2500965-A1 (DE)
Title: Reaction force limiter for steering valves - has piston of pressure limiting valve which selectively forms and closes flow section
Inventor: STRAUFF GUENTHER ING GRAD
IPC: B62D5/06
Filed: 1975-01-11
Abstract: A control piston connects the working chamber with a pressure supply. In a selected position which adjusts itself on failing pressure or failing outer force, the piston of the pressure limiting valve is so adjusted that a flow channel opening in the reaction chamber forms a relatively large common flow section with another flow channel. This section reduces by a movement of the piston and disappears above a first limit pressure. After achieving a second higher limit pressure a flow channel in the piston is connected with the drain. Above the first limit pressure there is a second flow path between the flow channel and the reaction chamber in the form of a tight annular gap forming a choke point between the piston and the surrounding piston bore.
Patent DE-2508910-A1 (DE)
Title: Man-powered flying machine - has lever-operated flap covered framework for manually undulated wings
Inventor: KETTELER HEINZ
IPC: B64C33/00
Filed: 1975-02-28
Abstract: The flying machine comprises two flat wings pivoting horizontally about the ends of a U-shaped framework, in the bottom of which are brackets for the pilot's feet, and at the top a yoke and harness for the pilots back/shoulders. Each wing consists of a light alloy framework with 55 rectangular spaces, each with a flap pivoting about one edge and hinged in the middle. A hand-operated system of levers allows these flaps to be opened and closed which, in combination with flapping the wings by alternately crouching and standing upright produces lift. Spring bump-stops assist reversal of the wing motion. Control surfaces are fixed to the pilots rear.
Patent DE-2509024-A1 (DE)
Title: Appts. for producing blown plastic film - having extruder connecting head and annular nozzle connected rotably to head
Inventor: SCHNELL WILLI
IPC: B29C48/10
Filed: 1975-03-01
Abstract: Appts. for producing blown plastic film has a connecting head, a nozzle with an annular split, an air blowing device with a central air inlet tube and a concentric air outlet tube, and a device for connecting the head to an extruder. The nozzle is connected rotatably to the head by an intermediate piece, and is provided with a drive for producing rotation in the same direction or in alternating directions. The head possesses a central, axial transfer channel for the plasticised resin, and this channel continues into an intermediate channel in the rotating intermediate piece leading to an annular channel in the nozzle, the intermediate channel being initially central and axial, and then branched. The air inlet tube and the air outlet tube are connected below the nozzle to radial connecting tubes leading to satellite chambers rotating with the nozzle, and the satellite chambers are connected rotatably to a stationary distributor chamber for the air supply, and a collecting chamber for the air discharge. Appts. gives high quality film that is free of parts having a variable thickness. This is achieved without the need for additional complicated devices for treating the film.
Patent DE-2510943-A1 (DE)
Title: Drying expandable styrene polymer particles - under partial vacuum in two stages to reduce loss of blowing agent
Inventor: JABRIK JULIUS DIPL ING
IPC: B29C44/34
Filed: 1975-03-13
Abstract: Expandable, particulate styrene polymers or copolymers are dried more effectively at 10-70 degrees C if the water-contg. of polymerisate is first agitated in a heated container under reduced press. of 0.1-200 Torr so that the water content is reduced to 0.5-3%, and then transferred adiabatically to a second container under similar temp. and press. conditions until the desired water content is achieved. Pref. the process is operated at above the saturation vapour press. of water w.r.t. the drying temp. whilst inert gas or air is blown through to reduce the partial press. of water vapour. Used for any styrene (co)polymer contg. >=50wt.% styrene produced by aq. suspension polymsn. Reduces dwell time when moulding foamed bodies.
Patent DE-2514053-A1 (DE)
Title: Control switch for self levelling headlamps - has ball rolling under gravity in guide to engage distal switches
Inventor: TRIER HARRI
IPC: B60Q1/115
Filed: 1975-03-29
Abstract: The vehicle has an electro-mechanical sensor (11) which monitors pitch without having to measure the relative axle/chassis spacings. A ball (29) rolls to either side in a guide (27) which is inclined towards the middle. At each end of the track there is a switch contact (30, 31) which operates the electric servo motor, in either direction, to alter the headlamp, inclination. For simplicity the monitor is mounted inside a transparent, insulating tube (26) so that the ready state of the monitor is easily seen. To prevent displacement of the mass during braking, accelerating a brake strip (10) is pressed down onto the mass by a solenoid controlled from an inertial sensor.
Patent DE-2518419-A1 (DE)
Title: Capillary thermometer with electronic conversion and display - has capacitor plates on column for oscillator frequency shift
Inventor: MAHDJURI FARAMARZ DR ING
IPC: G01K5/18
Filed: 1975-04-25
Abstract: The electronic temperature measuring probe uses a bulb and capillary type thermometer element with a mercury or other usual type of filling. The bulb and lower part of the column is encased in a metal sleeve with an electrical terminal. A little further up the column is a second sleeve of metal extending to the upper temperature limit required for the instrument. This second metal tube also carries a terminal. The column and electrodes form the electrical equivalent of a fixed and variable capacitor in series. If this is incorporated into an R-C oscillator, the frequency of oscillation will vary in inverse proportion to the temperature. A frequency counter and digital display can be used to accurately indicate the temperature reading.
Patent DE-2522115-A1 (DE)
Title: Protective cover for sailing surfboard - with plastic halves having pockets for fittings etc.
Inventor: FLUCK ALBERT
IPC: B63B35/79
Filed: 1975-05-17
Abstract: The sailing surfboard is collapsed into its components and stored in a special plastic cover. This is either a flexible material secured by a sliding clasp fastener, or a rigid plastic moulding with securing catches. The inside of the cover has a number of pockets which are used to store the separate components such as centreboard, ropes, rudder etc. The cover is designed to be waterproof and is readily stored on a roof rack. It can be provided with thief-proof locks. Other designs of cover can be used to carry several surfboards.
Patent DE-2532065-A1 (DE)
Title: Rapid enzymatic hydrolysis of triglycerides - using Candida lipase, pancreatic lipase and an alkali metal salt of a bile acid
Inventor: KOMATSU STANLEY KAZUO
IPC: C12Q1/44
Filed: 1975-07-17
Abstract: An enzymatic process for rapidly liberating glycerol from its esterified from as a fatty acid ester in an aq. fluid, comprises mixing the fluid with a combination of Candida lipase, pancreatic lipase and bile salt selected from the alkali metal salts of taurodeoxycholic, taurocholic, taurochenodeoxycholic and taurodehydrocholic acid. 100% hydrolysis can be achieved in 3-5 mins. without using a proteolytic enzyme such as chymotrypsin. Used in the enzymatic test for the determination of serum triglycerides.